@saurabh....if i look from the way that i need to return a referencei.e. i mean object...i will ryt *this for this..........i knew this............but i have read that reference is a const pointer ....so if i look from this prespective then do i need to return pointer(this).............. int * fun()//return pointer to int
then what does return by reference mean if i return ( *this)..then what actually returns...........full object???or pointer to object...mix questions ...plz clear me.. On Tue, Oct 9, 2012 at 11:26 PM, Saurabh Kumar <srbh.ku...@gmail.com> wrote: > >> as we know reference is a const pointer > That is Not quite true. > > >> our aim is ony to return pointer to circle > No. our aim is to return a reference to circle. > > When you've to define a reference you do something like: *Circle &ref = c; > * > you *don't* do: *Circle &ref = &c;* Right ? > > Same is the case here, at the receiving end where the call was initiated a > reference is waiting there to be initialized, so you pass the Object > (*this) itself and NOT the pointer (this). > [Also remember if you've a complex object, no copy constructors etc. are > called when an object is sent for *reference receiving,* so no need of > worries there.] > > References are not quite exactly same as pointers, they were introduced > much later as a wrapper to pointers but there are some subtle differences > between them when it comes to writing code, behaviorally, yes they are more > or less the same. > > On 9 October 2012 22:54, SAMM <somnath.nit...@gmail.com> wrote: > >> This used for the following situation when a=b=c=d (Consider then as >> the objects of a particular class say X ). >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to algogeeks@googlegroups.com. >> To unsubscribe from this group, send email to >> algogeeks+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
